Photoreceptors - Study guides, Class notes & Summaries

Retina Ans: A multi-layered structure that contains photoreceptors, ganglion cells, and bipolar cells. • Photoreceptors work together with cellular structures to convert light information into action potentials Fovea Ans: A small depression in the center of the retina where visual acuity is highest. How does the eye/lens reflect visual images Ans: • Image is vertically reflected (i.e. upside down) • Image is horizontally reflected. (i.e. left and right are flipped) The blindspot...

nsc finalWhen light hits the photoreceptors, what happens in terms of sodium gated channels? - correct answer Na channels CLOSE, causing the cell to hyperpolarize "Each time we face our fear, we gain strength, courage, and confidence" - correct answer Dr. Miller's PowerPoints The Parvocellular (P-IB) channel is involved in analysis of ______ - correct answer OBJECT SHAPE high orientation sensitivity, no color sensitivity, small receptive fields The Blob channel is involved in anal...

2023 Certified Paraoptometric (CPO) Exam And Answers Accounts Payable - CORRECT ANSWER-Outstanding business obligations that are owed to others. Accounts Receivable - CORRECT ANSWER-Outstanding obligations owed to the business by others. Cash Flow Statement - CORRECT ANSWER-A picture of all cash inflows and outflows within the business. Gross Profit - CORRECT ANSWER-The percentage of business income before expenses. Just in Time (JIT) - CORRECT ANSWER-A strategy to improve a busin...

CPO EXAM REVIEW QUESTIONS AND ANSWERS, GRADED A+. VERIFIED. What is another word for retroscopic angle? Tilt What is the benefit of biomicroscopy? Provides highly magnified view of structure of the eye, lids & lashes What are some of the treatments for dry eye? 1. Artificial Tears 2. Lubricants Corneal Edema When water is retained & swelling occurs in the cornea Accounting provides.. quantitative information about finances Cones the photoreceptors that provide color vision Conven...

What kind of receptors are changes in blood pH and pressure detected by? - ANSWERchemoreceptors and pressure receptors in the aorta or carotid artery Two types of photoreceptors in the eye? - ANSWERrods and cones What colour do rods detect and why? - ANSWERBlack and white ONLY - because they can't distinguish between wavelengths of light What kind of light intensity do rods detect and why? - ANSWER- Rods detect low light intensity - because many rods connect to one sensory neurone (R...

Anatomy and Physiology I What structure separates the external ear from the middle ear? - CORRECT ANSWER the tympanic membrane What do Thermoreceptors:do? - CORRECT ANSWER respond to temperature The tunics of the eye in order from most superficial to deepest are: - CORRECT ANSWER fibrous tunic, vascular tunic, and nervous tunic What are the receptors that respond to light called? - CORRECT ANSWER photoreceptors The lacrimal apparatus:is another name for what body part? - CORREC...

Pathophysiology HSC203 Exam Questions And Answers sensory receptors/sense organs Classified into two categories: general senses and special senses. special senses include eye and ear What does special senses include?? Eye and Ear Sensory receptors can be classified by? location Extroreceptors near body surface, and sometimes referred to as cutaneous receptors Examples of extroreceptors touch, pressure, temperature, and pain Visceroceptors receptors that are locate...

A&P 2 module 3 exam - portage learning Question and answers already 2023What senses contain specialized receptor cells via specialized somatic and visceral afferents? smell & equilibrium ( a&c) the posterior portion of the outer fibrous layer of the eye is called the ____ sclera what portion of the eye supplies blood supply to the outer layers of the eye? choroid (of the middle layer) true or false: the more numerous type of photoreceptors are rods true what is th...

MBB1 EXAM QUESTIONS WITH VERIFIED ANSWERS Which of the following best describes the Platonic view of vision and the world? Vision as Reflection - A 'real world' but our mortal senses are only capable of sampling a small subsection of that world. Which of the following is the alternative view which is illustrated in the writing of Friedrich Nietzsche? Vision as Construction - There was no 'real world', only the world inside your head. The world that we visually sense is entirely ...

sensory ption: for perception to happen, the sensory signal mustreachthe cerebrum 2. adaptation: the ability to no longer perceive sensations due to prolonged expo-sure 3. free nerve endings: pain, temperature changes, tickle, itch 4. encapsulated nerve endings: touch, pressure, vibration 5. special sensory cells: used to create special sensory reception 6. exteroceptors:sensations from outside the body 7. interoceptors:sensations from inside the body 8. proprioreceptors: where your body ...